The Secret Lives of Mormon Wives star Demi Engemann debunked rumors about her 16-year age gap with husband Bret Engemann - including whether he was her babysitter before they got married. "I didn't cheat on Bret and we did not know each other when I was 9 years old," Demi, 31, said during a joint interview on the Sunday, March 15, episode of the "I Do, Part 2" podcast, addressing a number of allegations regarding her relationship." Demi acknowledged that speculation started when she tried to lean into the humor around her and Bret's age difference.